./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor907488468 <...> Warning: Permanently added '10.128.1.99' (ED25519) to the list of known hosts. execve("./syz-executor907488468", ["./syz-executor907488468"], 0x7ffff6134e10 /* 10 vars */) = 0 brk(NULL) = 0x555573f16000 brk(0x555573f16d00) = 0x555573f16d00 arch_prctl(ARCH_SET_FS, 0x555573f16380) = 0 set_tid_address(0x555573f16650) = 5777 set_robust_list(0x555573f16660, 24) = 0 rseq(0x555573f16ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor907488468", 4096) = 27 getrandom("\x00\xdd\x9f\x36\xae\xb5\x9c\x7c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555573f16d00 brk(0x555573f37d00) = 0x555573f37d00 brk(0x555573f38000) = 0x555573f38000 mprotect(0x7f729d7d7000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555573f16650) = 5778 ./strace-static-x86_64: Process 5778 attached [pid 5778] set_robust_list(0x555573f16660, 24) = 0 [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5778] getppid() = 0 [pid 5778] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5778] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5778] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5778] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5778] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5778] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5778] unshare(CLONE_NEWNS) = 0 [pid 5778] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5778] unshare(CLONE_NEWIPC) = 0 [pid 5778] unshare(CLONE_NEWCGROUP) = 0 [pid 5778] unshare(CLONE_NEWUTS) = 0 [pid 5778] unshare(CLONE_SYSVSEM) = 0 [pid 5778] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "16777216", 8) = 8 [pid 5778] close(3) = 0 [pid 5778] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "536870912", 9) = 9 [pid 5778] close(3) = 0 [pid 5778] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "1024", 4) = 4 [pid 5778] close(3) = 0 [pid 5778] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "8192", 4) = 4 [pid 5778] close(3) = 0 [pid 5778] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "1024", 4) = 4 [pid 5778] close(3) = 0 [pid 5778] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "1024", 4) = 4 [pid 5778] close(3) = 0 [pid 5778] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5778] close(3) = 0 [pid 5778] getpid() = 1 [pid 5778] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 187.743731][ C1] dump_stack_lvl+0x216/0x2d0 [ 187.748527][ C1] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.754454][ C1] dump_stack+0x1e/0x24 [ 187.758745][ C1] panic+0x4e2/0xcf0 [ 187.762840][ C1] ? kmsan_get_metadata+0x111/0x1c0 [ 187.768211][ C1] kmsan_report+0x2c7/0x2d0 [ 187.772812][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.778110][ C1] ? __msan_warning+0x95/0x120 [ 187.782994][ C1] ? can_receive+0x219/0x5d0 [ 187.787695][ C1] ? can_rcv+0x209/0x3a0 [ 187.792068][ C1] ? __netif_receive_skb+0x42b/0xa00 [ 187.797563][ C1] ? process_backlog+0x4ad/0xa50 [ 187.802611][ C1] ? __napi_poll+0xe7/0x980 [ 187.807225][ C1] ? net_rx_action+0xa5a/0x19b0 [ 187.812219][ C1] ? handle_softirqs+0x1a0/0x7c0 [ 187.817393][ C1] ? __do_softirq+0x14/0x1a [ 187.822083][ C1] ? do_softirq+0x9a/0x100 [ 187.826645][ C1] ? __local_bh_enable_ip+0x9f/0xb0 [ 187.832042][ C1] ? __dev_queue_xmit+0x2758/0x57d0 [ 187.837340][ C1] ? can_send+0xf1c/0x13b0 [ 187.841875][ C1] ? isotp_sendmsg+0x1afc/0x2340 [ 187.846939][ C1] ? __sock_sendmsg+0x30f/0x380 [ 187.851915][ C1] ? ____sys_sendmsg+0x903/0xb60 [ 187.856956][ C1] ? ___sys_sendmsg+0x28d/0x3c0 [ 187.861944][ C1] ? __sys_sendmmsg+0x2ff/0x880 [ 187.866966][ C1] ? __x64_sys_sendmmsg+0xbc/0x120 [ 187.872188][ C1] ? x64_sys_call+0x33c2/0x3c30 [ 187.877186][ C1] ? do_syscall_64+0xcd/0x1e0 [ 187.882015][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 187.888244][ C1] ? __netif_receive_skb_core+0x65d0/0x6f10 [ 187.894324][ C1] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.900273][ C1] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.906224][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.911540][ C1] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.917540][ C1] __msan_warning+0x95/0x120 [ 187.922292][ C1] can_receive+0x219/0x5d0 [ 187.926829][ C1] can_rcv+0x209/0x3a0 [ 187.931009][ C1] ? ip6_rcv_finish+0x8d0/0x970 [ 187.935958][ C1] ? __pfx_can_rcv+0x10/0x10 [ 187.940661][ C1] __netif_receive_skb+0x42b/0xa00 [ 187.945875][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.951232][ C1] process_backlog+0x4ad/0xa50 [ 187.956196][ C1] ? __pfx_process_backlog+0x10/0x10 [ 187.961631][ C1] __napi_poll+0xe7/0x980 [ 187.966140][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.971444][ C1] net_rx_action+0xa5a/0x19b0 [ 187.976242][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.981535][ C1] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.987462][ C1] ? __pfx_net_rx_action+0x10/0x10 [ 187.992683][ C1] handle_softirqs+0x1a0/0x7c0 [ 187.997586][ C1] __do_softirq+0x14/0x1a [ 188.002048][ C1] do_softirq+0x9a/0x100 [ 188.006440][ C1] [ 188.009423][ C1] [ 188.012439][ C1] __local_bh_enable_ip+0x9f/0xb0 [ 188.017635][ C1] __dev_queue_xmit+0x2758/0x57d0 [ 188.022771][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.028060][ C1] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 188.034517][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.039835][ C1] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.045747][ C1] ? __dev_queue_xmit+0x3d6/0x57d0 [ 188.050965][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.056282][ C1] can_send+0xf1c/0x13b0 [ 188.060703][ C1] isotp_sendmsg+0x1afc/0x2340 [ 188.065673][ C1] ? __pfx_isotp_sendmsg+0x10/0x10 [ 188.070941][ C1] ? __pfx_isotp_sendmsg+0x10/0x10 [ 188.076144][ C1] __sock_sendmsg+0x30f/0x380 [ 188.080979][ C1] ____sys_sendmsg+0x903/0xb60 [ 188.085862][ C1] ___sys_sendmsg+0x28d/0x3c0 [ 188.090643][ C1] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 188.097119][ C1] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 188.103044][ C1] ? stack_depot_save_flags+0x6db/0x750 [ 188.108714][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.114005][ C1] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.119927][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.125224][ C1] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.131132][ C1] __sys_sendmmsg+0x2ff/0x880 [ 188.135939][ C1] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.141869][ C1] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.147203][ C1] ? ptrace_notify+0x263/0x320 [ 188.152161][ C1] __x64_sys_sendmmsg+0xbc/0x120 [ 188.157209][ C1] x64_sys_call+0x33c2/0x3c30 [ 188.162045][ C1] do_syscall_64+0xcd/0x1e0 [ 188.166645][ C1] ? clear_bhb_loop+0x25/0x80 [ 188.171445][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 188.177487][ C1] RIP: 0033:0x7f729d75f169 [ 188.181992][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 188.201716][ C1] RSP: 002b:00007ffc6bb48198 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 188.210268][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f729d75f169 [ 188.218414][ C1] RDX: 0000000000000002 RSI: 00000000200004c0 RDI: 0000000000000005 [ 188.226509][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 188.234567][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 188.242614][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 188.250695][ C1] [ 188.254051][ C1] Kernel Offset: disabled [ 188.258443][ C1] Rebooting in 86400 seconds..